[ Eliot smiles. He's sure it's probably pretty damn patronising to keep thinking like this—the American in him, he thinks—but G'raha is just so quick about it. He kinda expected to have to explain at least a couple of terms even if he'd figured that G'raha would pick up the science behind it fast enough. But no, he just nods and that's it. Time to move on. ]

Good question. Engines themselves are pretty solid, but if there is a serious issue like overheating or low oil or whatever the vehicle will tell you. What you do need to check regularly are your oil levels, oil filters, and tires. In a perfect world your van would have come with a manual and you could have used that to know when to check things like your air filters and your brakes and your transmission fluid, but I'll note down some best practices for you.

[ Wait. ]

What mode of energy generation do you use then? Is it that— [ uhhhhhh ] —aether stuff?